JPH0642859A - Door device for refrigerator - Google Patents

Abstract

PURPOSE:To obtain a door device for a refrigerator in which positionin9 and mounting operations of a guide member having a protrusion can be simply conducted by providing a mounting unit for mounting the member at an opening edge formed with a protrusion in the refrigerator in which a rotatable partition unit is mounted on double-leafed hinged door. CONSTITUTION:A concealing unit 44 for concealing gaps between upper, lower ends of a partition unit 20 provided at a front side of a protrusion 41 as a mounting unit 48 and an opening edge 8 of a heat insulation box, a mounting hole 46 for mounting a guide member 43 of an after-attaching separate structure having a protrusion 42 provided at a rear side of the protrusion, and a positioning unit 45 for positioning a rear position of the member are provided at the edge 8 of a heat insulation box 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator door device in which an opening of a heat insulating box is opened / closed by a double-door type door and a seal member is provided on the back surface of the door.

[0002]

2. Description of the Related Art Conventional refrigerators having a double-door type open door have a gasket provided on the back side of the door for abutting a gasket located on the non-pivotal side of the door to keep the inside of the refrigerator airtight. A blocking member that divides the opening of the heat insulating box into left and right to form a flat surface is attached to the heat insulating box. However, there is a drawback that the presence of the blockage not only reduces the internal volume of the refrigerator but also becomes an obstacle when the articles are taken in and out from the opening. For this reason, in the past, for example, the actual exploitation 55-520
No. 82 publication, a single-layer or multi-layer tongue protruding outward is formed on the gasket located on the non-pivotal side of both doors,
Although the tongues were brought into contact with each other to seal between the doors and thereby the above-mentioned closing material was deleted, since the deterioration of the airtightness of the tongues due to deterioration over time is remarkable, the applicant, for example, actually opened the door. As shown in Japanese Patent Laid-Open No. 62-63692, a rotatable partition body is attached to the door side instead of the above-mentioned closing member.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The partition body disclosed in Japanese Patent No. 692 constitutes a contact surface of the gasket only when the first door is closed and sufficiently exhibits airtight performance, and when the first door is opened, the non-pivotal side end portion of the door. Since it rotates further inward and moves away from the opening edge of the heat insulating box together with the first door, it does not interfere with the loading and unloading of food.

However, due to the mounting error caused by the deformation of the inner surface of the door when the heat insulating material is foamed and the displacement of the mounting positions of the double door and the partition, the partition is closed at a certain angle (about 90 here). °) More than this, the opening angle of the partition body with respect to the first door becomes large, so that when the first door is closed, it is not possible to form a proper gasket contact surface with the partition body, or the partition body opens. As the angle increases, the force required to open the first door becomes larger than necessary, which makes it difficult to open and close the door.

Further, since the columnar protrusions functioning as the guide members of the partition body are provided at the opening edge of the heat insulating box,
If the partition body has already been rotated to the predetermined position when the first door is closed, the partition body collides with the second door or the protrusion of the opening edge when the first door is closed. The second door or the partition body may be damaged or the protrusion may be damaged, and the desired rotation operation of the partition body may not be performed. For this reason, a replacement guide member having a protrusion must be attached to the opening edge, but when the columnar protrusion is integrally formed on the opening edge, the replacement guide member is attached. However, there was a problem that the mounting position was difficult to understand and it was difficult to mount it at the desired position.

Therefore, according to the present invention, a mounting portion for mounting the guide member is provided on the opening edge where the projection is formed so that the positioning and mounting work of the guide member having the projection can be easily performed, while the partition body is provided. A stopper for defining the rotation angle with respect to the first door is provided so as to absorb the mounting error of the partition body, and when the first door is closed, the partition body reliably forms the contact surface of the seal member, and It is an object of the present invention to provide a refrigerator door device capable of relaxing the opening / closing force of the first door.

[0007]

According to the present invention, there is provided a first double door and a second double door which are rotatably supported on both sides of an insulating box having a front opening so as to close the opening. With a door
A protrusion formed on the opening edge of the heat insulating box located on the non-pivotal side of both doors and a back surface of the non-pivotal side of the first door extending in the direction of the rotation axis of the first door. And is rotatably supported,
A refrigerator provided with a partitioning body that is rotated from the initial state along the inner surface of the first door by the closing operation of the first door and has a front surface that is substantially flush with the opening edge. A refrigerator door device is provided in which an attachment portion for attaching a guide member having a protrusion is provided at an opening edge of the heat insulation box body in which the portion is formed.

According to the present invention, a hinge member for rotatably mounting the partition body on the back surface of the first door, a shaft portion of the hinge member mounted on the partition body, and a bearing of the partition body for receiving the shaft portion are provided. A door device for a refrigerator provided with a stopper that is provided between the partition body and a stopper that defines a rotation range of the partition body with respect to the first door.

[0009]

According to the refrigerator door device of the first aspect, the mounting portion provided at the opening edge acts not only as a mounting member but also as a positioning member for the front and rear portions of the guide member. The front and rear positions of the member can be easily positioned, and the guide member can be fixed to the mounting portion in a surely positioned state, which facilitates the replacement work of the guide member. In particular, the shielding portion shown in the embodiment also has an action as a contact member for the hollow concealing member and the sealing member for making parts other than the protrusion of the guide member invisible.

According to the door device of the second aspect, since the stopper provided between the partition body and the hinge member acts so as to define the rotation angle of the partition body with respect to the first door, the first door is closed. In this case, the contact surface of the seal member can be reliably formed by the partition body, and the force for opening the door during the opening operation of the first door can be reduced as compared with the conventional case.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 is a refrigerator, and a freezer compartment F and a refrigerator compartment R are arranged in this order from the top.
And the vegetable room and the bottle room are arranged, and the gannon-opening type first doors 2F, 2R and the second doors 3F, 3R are provided in the freezing room and the refrigerating room.
In the vegetable compartment V and the bottle compartment B, pull-out doors 4V and 4
B are arranged respectively. The refrigerator 1 is composed of the six doors and a heat insulating box 7, and the heat insulating box 7 includes an outer box 5 made of a steel plate, an inner box 6 made of synthetic resin, and both boxes 5, 5. It is composed of a foamed heat insulating material (not shown) filled between 6 and the upper opening 3
An upper partition member 9 and a lower partition member 10 are arranged so as to partition into steps. A space above the upper partition member 9 is defined as a freezing room F, and a space between the upper partition member 9 and the lower partition member 9 is defined as a refrigerating room R.
The vegetable compartment V is on the right side and the bottle compartment B is on the left side of the space below the lower partition member.

The first doors 2F, 2R and the second door 3 of the gannon opening type
F and 3R are rotatably supported at the opening edge of the front opening 8 by hinges (not shown) so as to close the front openings of the freezing compartment F and the refrigerating compartment R. Since the doors of the freezing compartment and the doors of the refrigerating compartment differ only in size (especially height), the doors 2R and 3R of the refrigerating compartment will be described below as an example.

The first door 2R and the second door 3R have a frame member 11
Outer frames 13A and 13B composed of A and 11B and door outer plates 12A and 12B engaged with them, and outer peripheral flanges 15 to inner flanges 14 (only the first door is shown) of frame members 11A and 11B. Door inner plate 16 (only the first door is shown) formed by abutting, outer frames 13A, 13B, and door inner plate 16
It is composed of a heat insulating material I that is foam-filled in each. The door inner plate 16 is formed with a pair of left and right vertical walls 17 (only the non-pivot side is shown) in which the heat insulating material I is filled, and the grooves 18 at the ends of the frame members 11A and 11B are formed. A gasket G as a seal member having a built-in magnet is attached, and the fins F of the gasket G are in close contact with the vertical walls 19 on the non-pivotal side. The gasket G is a heat insulating box 7 when the doors 2R and 3R are closed.
The front edge of the outer box 5 located in the opening 8 of the
Seal the inside.

On the outer side of the vertical wall 17 inside the gasket G located on the non-pivotal side of the back surface of the first door 2R, a partition body 20 having a substantially rectangular cross section is pivoted by two upper and lower hinge members 31. Can be installed freely.

The partition body 20 extends up and down with a length substantially extending up and down the opening edge of the refrigerating chamber R, and a main body 21 made of synthetic resin having a substantially U-shaped cross section, and this main body. 21
The cap 22 attached to the upper and lower ends of the main body 21
And a metallic contact plate 23 attached to the cap 22 and forming a space between the cap 22 and the main body, and a heat insulating material 2 such as styrene foam housed in the space formed by the contact plate 23 and the main body 21.
4 and.

The main body 21 and the cap 22 are provided with bearing portions 25 that support the shaft portion 33 of the hinge member 31.

A toggle spring 26 is provided between the main body 21 and one (upper here) hinge member 31A as a rotation assisting device for urging the partition body 20 in both the opening direction and the closing direction. ing. That is, the toggle spring 26
Has one end fixed to a locking piece 35 formed on the hinge member 31 and the other end fixed to a locking piece 37 formed on the main body 21. Due to its elastic force, as shown by the solid line in FIG. An initial state along the door inner plate 16 of the vertical wall 17 of the door 2R (hereinafter referred to as an open state) and a state in which the shaft portion 33 is rotated as a fulcrum from this initial state (that is, an open state) and shown by a chain double-dashed line in FIG. As described above, the contact plate 23 is substantially flush with the opening edge 8 and is in contact with the gasket G located on the non-pivotal side of each of the first door 2R and the second door 3R (hereinafter referred to as a closed state). The partition body 20 is urged in both directions of opening and closing so as to be positioned in the state.

Numeral 27 is provided on the back surface of the main body 21, and when the partition body 20 is rotated so as to be substantially parallel to the vertical wall 17 of the first door 2R, the partition body vigorously moves toward the vertical wall 17. It is a cushioning material such as rubber for preventing collision. The back surface of the main body is located on the front side and is flush with the opening edge when the contact plate 23 of the partition body 20 is rotated so as to form the contact surface of the gasket G. Therefore, it refers to the back side surface of the wall of the main body 21 that faces the contact plate 23.

In order to change the direction of the partition body 20 in the upper cap 22A, when the projection 41, which will be described later, enters and when the projection 41 begins to exit, the projection 41 is formed.
Has a inlet 28 for entering and a curved groove 28 is formed. A packing 29 for closing a gap between a shield 44 and a cap 22 described later is fixed to the upper and lower two caps 22. The cap 22 is fixed to the main body 21 and the contact plate 23 with a screw 30 as a fixing member.

The hinge member 31 includes a fixing portion 32 attached to the vertical wall 17, a shaft portion 33 axially supported by the bearing portion 25 of the partition body 20, and an arm portion 34 connecting the shaft portion 33 and the fixing portion 32. And is made of synthetic resin in this embodiment.

At the portions of the upper wall of the heat insulating box 7 and the lower surfaces of the upper partition members 9 located on the respective non-pivotal sides of the double doors of the double door type, a partition body 20 is provided based on the opening / closing operation of the first door. In order to automatically change the direction, a columnar protrusion 41 as a guide member integrally formed in the resin inner box as shown in FIGS. 6 and 7, or as shown in FIGS. 8 and 9 The guide members 43, which are provided separately and have the columnar projections 42 (the same for replacement), are provided. still,
For the purpose of increasing the strength of the protrusion 41, it is preferable to put a metal piece in the inner box portion corresponding to the protrusion or increase the area of the root portion of the protrusion.

A mounting portion 48 for mounting a replacement guide member having a projection 42 is provided at the opening edge of the heat insulating box 7 having the projection 41. This mounting portion 48 is
A shield portion 44 provided on the front side of the protrusion 41 for hiding a gap between the upper and lower ends of the partition body 20 and the opening edge, and a rear position of the replacement guide member 43 provided on the rear side of the protrusion 41 are determined. Positioning section 45, shielding section 44 and positioning section 4 for
5 and a mounting hole 46 for mounting a screw 47 for mounting a guide member 43 which is provided separately (and replaced) on a separate body. However, instead of the mounting hole 46, an engaging piece such as a convex portion or a concave portion that can be detachably engaged with the guide member 43 may be used, and the shielding portion 44, the positioning portion 45 and the engaging piece may be further provided. It is a more preferable embodiment if it is integrally formed.

The movement of the partition body 20 associated with the opening / closing operation of the first door 2R will now be described. First, when the first door 2R is open, the partition body 20 is shown in FIG. 11 by the urging force of the toggle spring 26. Thus, the position is determined in a state (open state) substantially along the vertical wall 17 of the door inner plate 16.

Next, when the first door 2R is closed, the partition 2
It contacts the protrusion 41 at the entrance of the groove portion 28 of 0. When the first door is further closed, the contact portion between the protruding portion 41 and the groove portion 28 sequentially moves the front surface of the curved groove portion 28 along this surface to the inner side of the groove portion 28, and this protrusion Part 41
Thus, the partition body 20 gradually turns counterclockwise while resisting the biasing force of the toggle spring 26. And
Since the elastic force of the toggle spring 26 acts in the counterclockwise direction at a certain point, the protrusion 41 enters the inner part of the groove 28, and when the closing operation of the first door 2R is completed, the protrusion 41 moves into the groove. The partition body 20 is located at the innermost part of 28, and in this state, the partition plate 20 has its contact plate 23 substantially flush with the opening edge 8 as shown by the chain double-dashed line in FIG. It constitutes the magnetized surface of the gasket G located and is stably maintained, whereby the opening of the refrigerating compartment R is sealed.

On the contrary, when the first door 2R is opened, the protrusion 41 contacts the rear surface of the groove 28 as shown by the solid line in FIG. 12, and the contact portion extends along the rear surface of the groove 28. The partition body 20 gradually changes its direction in the clockwise direction because the partition body 20 gradually moves toward the entrance side. Then, when a certain point is exceeded, the elastic force in the clockwise direction of the toggle spring 26 is exerted, and the partition body 20 as shown by the chain double-dashed line in FIG.
Returns to the initial state (that is, the open state).

The above operation can be performed regardless of whether the second door 3R is open or closed.

Further, the shielding portion 44 provided on the opening edge acts as a positioning member in the front portion of the guide member 43 for retrofitting separately, and the positioning portion 45 acts as a positioning member in the rear portion of the guide member 43. The front and rear positions of the guide member 43 can be easily positioned, and the guide member 43
Is easily located in a state substantially parallel to the shielding portion 44. Therefore, since the guide member 43 may be fixed to the mounting hole 46 in a state where the guide member 43 is reliably positioned, the work of mounting and replacing the guide member 43 is facilitated. In particular, the shielding portion 44 also acts as a concealing member that hides the portion other than the protrusion 42 of the guide member 43 and a contact member of the gasket G, and the design of the opening 8 of the refrigerator 1 can be improved.

FIGS. 10 to 12 show another embodiment of the protrusion, which is the axis K of the shaft 33 of the hinge member 31 shown in FIG. 5 and the opening operation of the first door 2R. The protrusion 49 is provided to increase the distance between the protrusion 41 and the first contact point L between the groove 28 of the partition body 20 and the rotation moment of the partition body 20 during the first door opening operation. It is a thing. That is, the thickness of the protrusion 49 is made smaller than the distance M between the front surface and the rear surface of the groove 28, and the width of the protrusion 49 is set to about twice the distance M. It has been set.

According to this projection 49, as compared with the cylindrical projection 41 as shown in FIG. 5 which is located at the deepest part of the groove 28 of the partition body 20 when the partition body 20 is closed, Since the distance between the axis K and the first contact point L is double or more, the rotation moment of the partition body 20 during the opening operation of the first door is double or more, and the force for opening the first door is small. The door is easy to open because it is good. Moreover, JP-A-3-10
Even when compared with the curved projection as shown in Japanese Patent No. 5189, the contact between the projection 49 and the groove 28 is point contact, so that the frictional resistance proportional to the contact area is reduced, and the first The door will be easier to open. Furthermore, since the area of the root portion can be made larger than that of the protrusion 41, the strength of the protrusion 49 itself can be increased.

On the other hand, FIG. 13 shows the first door 2R of the partition body 20.
It shows an example in which a stopper 51 for defining a rotation angle (particularly a rotation limit position in a closed state) with respect to is provided in the cap 22A on the upper side of the partition body 20. still,
The stopper 51 may be provided on the lower cap 22, the partition body 21, and the hinge member 31, and between the shaft portion 33 of the hinge member 31 and the bearing portion 25 of the partition body 20 that receives the shaft portion 33. It should be provided.

According to this stopper 51, it is possible to absorb the mounting error of the partition body 20 caused by the deformation of the door inner plate 16 when the heat insulating material is foamed and the displacement of the mounting positions of the double doors 2R and 2F and the hinge member 31. Moreover, since the partition body 20 does not rotate more than a certain angle (here, about 90 °) when the first door 2R is closed, the partition body 2 is closed when the first door is closed.
0 surely forms the contact surface of the gasket G, and
The opening / closing force of the door 2R can be relaxed.

[0032]

As described above, according to the refrigerator door device of the first aspect, the mounting portion provided at the opening edge of the heat insulating box body having the protrusion is not only a guide member mounting member but also a guide member. Since it acts as a front and rear part of the member and also as a left and right positioning member, the front and rear positions of the replacement guide member can be easily positioned, and the guide member can be fixed to the mounting part in a surely positioned state. The replacement work of the members becomes easy. In particular, the mounting portion also has an effect as a contact member for the bolster concealing member and the sealing member for making the portions other than the protrusions of the guide member invisible.

According to the door device of the second aspect, the stopper provided between the partition body and the hinge member is the first partition body.
Since it acts so as to regulate the rotation angle with respect to the door, the contact surface of the seal member can be reliably formed by the partition body when the first door is closed, and the door at the time of the opening operation of the first door. It is possible to reduce the force for opening the door more than before.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a first door and a heat insulating box showing a relationship between a partition body and a protrusion.

FIG. 2 is a front view of the refrigerator.

FIG. 3 is a perspective view of a main part of a heat insulating box.

FIG. 4 is an exploded perspective view of a partition body.

FIG. 5 is an enlarged cross-sectional view showing the relationship between the partition body, the protrusions, and the seal member when the double door is closed.

FIG. 6 is a vertical cross-sectional view of an upper partition member integrally formed with a protrusion when viewed from the side.

7 is a perspective view of a main part of the upper partition member of FIG. 6 viewed from below.

FIG. 8 is a vertical cross-sectional view of an upper partition member to which a guide member having a protrusion is separately attached.

9 is a perspective view of an essential part of FIG.

FIG. 10 is an enlarged transverse sectional view corresponding to FIG. 5 showing another embodiment of the protrusion.

FIG. 11 is an enlarged cross-sectional view showing a state of the partition body when the first door is closed.

FIG. 12 is an enlarged cross-sectional view showing a state of the partition body when the first door is opened.

FIG. 13 is an exploded perspective view showing a relationship between a stopper and a hinge member.

FIG. 14 is a perspective view of an upper portion of the partition body.

[Explanation of symbols]

 2F, 2R 1st door 3F, 3R 2nd door 20 Partition body 25 Bearing part 31 Hinge member 33 Shaft part 41 Projection part 42 Projection 43 Guide member 44 Shielding part 45 Positioning part 46 Mounting hole 48 Mounting part 51 Stopper

Claims (2)

[Claims] 1. A gannon-opening type first and second doors rotatably pivoted on both sides of the opening of a heat-insulating box having a front opening so as to close the opening, and non-opening of both doors. A protrusion formed on an opening edge of the heat insulating box located on the pivot side;
On the back surface of the non-pivot side portion of the door, the first door is supported rotatably by extending in the rotation axis direction of the first door, and by the closing operation of the first door, the protrusion causes the inner surface of the first door. In a refrigerator provided with a partition body which is rotated from an initial state along the front surface and is substantially flush with the opening edge, a protrusion is formed on the opening edge of the heat insulating box in which the protrusion is formed. A door device for a refrigerator, which is provided with a mounting portion for mounting a guide member. 2. A gannon-opening type first door and a second door rotatably pivoted on both sides of the opening of a heat insulating box having a front opening so as to close the opening, and non-opening of both doors. A guide member provided on the opening edge of the heat insulating box located on the pivot side and a back surface of the non-pivot side portion of the first door extending in the rotation axis direction of the first door and rotatable. A refrigerator provided with a partition body that is supported by the first door and is rotated from the initial state along the inner surface of the first door by the guide member when the first door is closed, and the front surface is substantially flush with the opening edge. Between a hinge member that rotatably attaches the partition body to the back surface of the first door, a shaft portion of the hinge member that is attached to the partition body, and a bearing portion of the partition body that receives the shaft portion. And a stopper that defines a rotation range of the partition body with respect to the first door. A door device for a refrigerator.